The card window's sidebar-toggle move rightmost in its toolbar — the conventional macOS position for trailing-sidebar controls

Claude-Session: https://claude.ai/code/session_014PtZdPwqZuqEDLc6wZMtEy

KanbanTests/ToolbarTests.swift

@@ -601,17 +601,18 @@ struct CardToolbarTests {
         return (body, raw, attachments, actions)
     }
 
-    @Test("The default set is the trio, Show Sidebar, and Delete Card — separated by a flexible space")
+    @Test("The default set is the trio, Delete Card, and Show Sidebar — separated by a flexible space")
     func defaultsAreSeparatedFromDeleteCard() {
-        // "Card window default: Edit Body · Raw Source · Add Attachment" joined by Show Sidebar (the
-        // toolbar-toggle card) and now Delete Card, HIG's "apart from the creation-side defaults"
-        // spelled as a literal `.flexibleSpace` between the two clusters — `BoardToolbar.defaultItems`'
-        // own leading-spacer pattern, turned trailing here.
+        // "Card window default: Edit Body · Raw Source · Add Attachment" joined by Delete Card (after
+        // the sidebar Actions section retired), then Show Sidebar (the trailing-sidebar toggle, at the
+        // rightmost position per macOS convention), with `.flexibleSpace` between the creation-side
+        // defaults and the destructive/sidebar-control cluster — `BoardToolbar.defaultItems`' own
+        // leading-spacer pattern, turned trailing here.
         #expect(CardToolbar.defaultItems == [
-            .cardEditBody, .cardRawSource, .cardAddAttachment, .cardShowSidebar, .flexibleSpace, .cardDeleteCard,
+            .cardEditBody, .cardRawSource, .cardAddAttachment, .flexibleSpace, .cardDeleteCard, .cardShowSidebar,
         ])
         #expect(CardToolbar.defaultItems.filter { $0 != .flexibleSpace } == [
-            .cardEditBody, .cardRawSource, .cardAddAttachment, .cardShowSidebar, .cardDeleteCard,
+            .cardEditBody, .cardRawSource, .cardAddAttachment, .cardDeleteCard, .cardShowSidebar,
         ])
     }